diff --git a/http/http-advanced-reactive/src/main/java/io/quarkus/ts/http/advanced/reactive/HeadersMessageBodyWriter.java b/http/http-advanced-reactive/src/main/java/io/quarkus/ts/http/advanced/reactive/HeadersMessageBodyWriter.java
index 3e78f71a8..ef0659767 100644
--- a/http/http-advanced-reactive/src/main/java/io/quarkus/ts/http/advanced/reactive/HeadersMessageBodyWriter.java
+++ b/http/http-advanced-reactive/src/main/java/io/quarkus/ts/http/advanced/reactive/HeadersMessageBodyWriter.java
@@ -21,7 +21,7 @@ public boolean isWriteable(Class aClass, Type type, Annotation[] annotations, Me
 
     @Override
     public void writeTo(CustomHeaderResponse customHeaderResponse, Class<?> aClass, Type type, Annotation[] annotations,
-                        MediaType mediaType, MultivaluedMap<String, Object> multivaluedMap, OutputStream outputStream)
+            MediaType mediaType, MultivaluedMap<String, Object> multivaluedMap, OutputStream outputStream)
             throws IOException, WebApplicationException {
         final String content = "Headers response: " + customHeaderResponse.getContent();
         outputStream.write(content.getBytes());
diff --git a/http/http-advanced-reactive/src/main/java/io/quarkus/ts/http/advanced/reactive/HeadersResource.java b/http/http-advanced-reactive/src/main/java/io/quarkus/ts/http/advanced/reactive/HeadersResource.java
index bdf5fd034..38544b37d 100644
--- a/http/http-advanced-reactive/src/main/java/io/quarkus/ts/http/advanced/reactive/HeadersResource.java
+++ b/http/http-advanced-reactive/src/main/java/io/quarkus/ts/http/advanced/reactive/HeadersResource.java
@@ -33,8 +33,8 @@ public Uni<Response> headersOverride() {
     @GET
     @Path("/no-accept")
     @Produces(MediaType.TEXT_PLAIN)
-    public Uni<String> okHeaders() {
-        return Uni.createFrom().item("ok headers");
+    public Uni<Response> noAcceptHeaders() {
+        return Uni.createFrom().item(Response.ok(new CustomHeaderResponse("ok headers")).build());
     }
 
 }
diff --git a/http/http-advanced-reactive/src/test/java/io/quarkus/ts/http/advanced/reactive/BaseHttpAdvancedReactiveIT.java b/http/http-advanced-reactive/src/test/java/io/quarkus/ts/http/advanced/reactive/BaseHttpAdvancedReactiveIT.java
index df954181b..fd8f9168a 100644
--- a/http/http-advanced-reactive/src/test/java/io/quarkus/ts/http/advanced/reactive/BaseHttpAdvancedReactiveIT.java
+++ b/http/http-advanced-reactive/src/test/java/io/quarkus/ts/http/advanced/reactive/BaseHttpAdvancedReactiveIT.java
@@ -98,12 +98,7 @@ public void httpServer() {
     @Test
     @DisplayName("GRPC Server test")
     public void testGrpc() {
-        getApp().given()
-                .when()
-                .get("/api/grpc/trinity")
-                .then()
-                .statusCode(SC_OK)
-                .body(is("Hello trinity"));
+        getApp().given().when().get("/api/grpc/trinity").then().statusCode(SC_OK).body(is("Hello trinity"));
     }
 
     @Test
diff --git a/http/http-advanced-reactive/src/test/java/io/quarkus/ts/http/advanced/reactive/DevModeGrpcIntegrationReactiveIT.java b/http/http-advanced-reactive/src/test/java/io/quarkus/ts/http/advanced/reactive/DevModeGrpcIntegrationReactiveIT.java
index 364a00055..9517aae89 100644
--- a/http/http-advanced-reactive/src/test/java/io/quarkus/ts/http/advanced/reactive/DevModeGrpcIntegrationReactiveIT.java
+++ b/http/http-advanced-reactive/src/test/java/io/quarkus/ts/http/advanced/reactive/DevModeGrpcIntegrationReactiveIT.java
@@ -70,12 +70,7 @@ public void testGrpcAsClient() throws ExecutionException, InterruptedException {
 
     @Test
     public void testGrpcViaRest() {
-        app.given()
-                .when()
-                .get("/api/grpc/trinity")
-                .then()
-                .statusCode(HttpStatus.SC_OK)
-                .body(is("Hello trinity"));
+        app.given().when().get("/api/grpc/trinity").then().statusCode(HttpStatus.SC_OK).body(is("Hello trinity"));
     }
 
     @Test
diff --git a/http/http-advanced-reactive/src/test/java/io/quarkus/ts/http/advanced/reactive/HeadersIT.java b/http/http-advanced-reactive/src/test/java/io/quarkus/ts/http/advanced/reactive/HeadersIT.java
index 1b158412d..1633ec1a6 100644
--- a/http/http-advanced-reactive/src/test/java/io/quarkus/ts/http/advanced/reactive/HeadersIT.java
+++ b/http/http-advanced-reactive/src/test/java/io/quarkus/ts/http/advanced/reactive/HeadersIT.java
@@ -10,14 +10,13 @@
 
 import java.util.List;
 
-import io.restassured.http.Header;
-import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Tag;
 import org.junit.jupiter.api.Test;
 
 import io.quarkus.test.bootstrap.RestService;
 import io.quarkus.test.scenarios.QuarkusScenario;
 import io.quarkus.test.services.QuarkusApplication;
+import io.restassured.http.Header;
 import io.restassured.response.ValidatableResponse;
 
 @QuarkusScenario
@@ -104,7 +103,6 @@ private ValidatableResponse whenGet(String path) {
                 .body(is("ok"));
     }
 
-    @Disabled("https://github.com/quarkusio/quarkus/issues/42854")
     @Test
     @Tag("https://github.com/quarkusio/quarkus/pull/41411")
     void testWithNoAcceptHeader() {
diff --git a/http/http-advanced/src/main/java/io/quarkus/ts/http/advanced/HeadersResource.java b/http/http-advanced/src/main/java/io/quarkus/ts/http/advanced/HeadersResource.java
index e9cf956b8..8ce1d1b97 100644
--- a/http/http-advanced/src/main/java/io/quarkus/ts/http/advanced/HeadersResource.java
+++ b/http/http-advanced/src/main/java/io/quarkus/ts/http/advanced/HeadersResource.java
@@ -15,13 +15,6 @@ public String headers() {
         return "ok";
     }
 
-    @GET
-    @Path("/no-accept")
-    @Produces(MediaType.TEXT_PLAIN)
-    public CustomHeaderResponse noAcceptheaders() {
-        return new CustomHeaderResponse("ok");
-    }
-
     @GET
     @Path("/pragma")
     public String pragmaHeaderMustBeSet() {
@@ -34,4 +27,10 @@ public Response headersOverride() {
         return Response.ok("ok").header("foo", "abc").build();
     }
 
+    @GET
+    @Path("/no-accept")
+    @Produces(MediaType.TEXT_PLAIN)
+    public Response noAcceptHeaders() {
+        return Response.ok(new CustomHeaderResponse("ok headers")).build();
+    }
 }
diff --git a/http/http-advanced/src/test/java/io/quarkus/ts/http/advanced/BaseHttpAdvancedIT.java b/http/http-advanced/src/test/java/io/quarkus/ts/http/advanced/BaseHttpAdvancedIT.java
index 4f34bb95d..df22cdc50 100644
--- a/http/http-advanced/src/test/java/io/quarkus/ts/http/advanced/BaseHttpAdvancedIT.java
+++ b/http/http-advanced/src/test/java/io/quarkus/ts/http/advanced/BaseHttpAdvancedIT.java
@@ -111,13 +111,7 @@ public void clientHostAddress(TestInfo testInfo) {
     @Test
     @DisplayName("GRPC Server test")
     public void testGrpc() {
-        getApp()
-                .given()
-                .when()
-                .get("/api/grpc/trinity")
-                .then()
-                .statusCode(HttpStatus.SC_OK)
-                .body(is("Hello trinity"));
+        getApp().given().when().get("/api/grpc/trinity").then().statusCode(HttpStatus.SC_OK).body(is("Hello trinity"));
     }
 
     @Test
diff --git a/http/http-advanced/src/test/java/io/quarkus/ts/http/advanced/DevModeGrpcIntegrationIT.java b/http/http-advanced/src/test/java/io/quarkus/ts/http/advanced/DevModeGrpcIntegrationIT.java
index cf0581de0..7a3d5b323 100644
--- a/http/http-advanced/src/test/java/io/quarkus/ts/http/advanced/DevModeGrpcIntegrationIT.java
+++ b/http/http-advanced/src/test/java/io/quarkus/ts/http/advanced/DevModeGrpcIntegrationIT.java
@@ -68,12 +68,7 @@ public void testGrpcAsClient() {
 
     @Test
     public void testGrpcViaRest() {
-        app.given()
-                .when()
-                .get("/api/grpc/trinity")
-                .then()
-                .statusCode(HttpStatus.SC_OK)
-                .body(is("Hello trinity"));
+        app.given().when().get("/api/grpc/trinity").then().statusCode(HttpStatus.SC_OK).body(is("Hello trinity"));
     }
 
     @Test
diff --git a/http/http-advanced/src/test/java/io/quarkus/ts/http/advanced/HeadersIT.java b/http/http-advanced/src/test/java/io/quarkus/ts/http/advanced/HeadersIT.java
index 8f928d0ad..4e8ba99f1 100644
--- a/http/http-advanced/src/test/java/io/quarkus/ts/http/advanced/HeadersIT.java
+++ b/http/http-advanced/src/test/java/io/quarkus/ts/http/advanced/HeadersIT.java
@@ -96,8 +96,10 @@ void testPathSpecificHeaderRulesOrder() {
         cacheControlMatches(response, "max-age=1");
     }
 
+    /**
+     * Coverage for https://github.com/quarkusio/quarkus/issues/41354 in RESTEasy classic
+     */
     @Test
-    @Tag("https://github.com/quarkusio/quarkus/pull/41411")
     void testWithNoAcceptHeader() {
         Header header = new Header("Accept", null);
         given()
@@ -106,7 +108,7 @@ void testWithNoAcceptHeader() {
                 .get("/headers/no-accept")
                 .then()
                 .statusCode(200)
-                .body(is("Headers response: ok"));
+                .body(is("Headers response: ok headers"));
     }
 
     private ValidatableResponse whenGet(String path) {